(448) Explore our AS-568 & Extended Standard Size O-Rings including our new 5/32" Nominal Cross Section O-Rings. Precision Associates' O rings are available off the shelf in several standard compounds. Or try O rings in one of 900+ specialty materials in 24 polymer groups, including Viton®, Aflas®, EPDM, Nitrile, HNBR (HSN), XNBR, Neoprene®, Butyl, XNBR, Silicone, Fluorosilicone, Urethane, Hypalon®, and Hydrin®. Click here to view our 48 page (5Mb) Catalog illustrated with full-size drawings of Standard Size O-Rings plus Dimensions and Tolerances.
Search our 2000+ Standard & Special Size O-Ring Tooling List. O-Rings are availabe with inside diameters (ID) as small as .010" and as large as 30". If you can't find your O-Ring size, please call - new O ring sizes are added regularly. If we are not tooled for your O Ring, we can make a special mold in our In-House mold shop.